.page-index__hero-section { width: 100%; padding-top: 0; margin-top: 0; overflow: hidden; background: linear-gradient(135deg, #08162B 0%, #113B7A 100%); }
.page-index__hero-container { width: 100%; margin: 0 auto; }
.page-index__hero-link { display: block; width: 100%; text-decoration: none; }
.page-index__hero-image { width: 100%; height: auto; display: block; object-fit: cover; aspect-ratio: 17/5; }

.page-index__logo-grid-section { max-width: 1200px; margin: 24px auto 32px; padding: 0 16px; }
.page-index__logo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px 20px; justify-items: center; }
.page-index__logo-item { display: flex; flex-direction: column; align-items: center; gap: 12px; width: 100%; max-width: 280px; text-align: center; background-color: transparent; padding: 12px; border-radius: 12px; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.page-index__logo-item:hover { transform: translateY(-5px); }
.page-index__logo-image { width: 100%; height: auto; aspect-ratio: 2/1; object-fit: contain; display: block; border: 1px solid #244D84; border-radius: 12px; background-color: #fff; }
.page-index__logo-cta { display: inline-block; padding: 10px 20px; border-radius: 999px; background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%); color: #F3F8FF; font-weight: 700; text-decoration: none; box-shadow: 0 4px 14px rgba(47, 128, 237, 0.4); border: none; cursor: pointer; transition: opacity 0.3s ease, transform 0.3s ease; }
.page-index__logo-cta:hover { opacity: 0.85; transform: scale(1.05); }
.page-index__logo-item:nth-child(5) { grid-column: 2; }
.page-index__logo-item:nth-child(6) { grid-column: 3; }

.page-index__guide-section { width: 100%; background-color: #08162B; }
.page-index__guide-inner { max-width: 1000px; margin: 0 auto; padding: 24px 16px 56px; color: #F3F8FF; }
.page-index__guide-title { text-align: center; color: #F2C14E; margin: 12px 0 24px; font-size: clamp(1.4rem, 4vw, 2rem); line-height: 1.3; font-weight: 800; letter-spacing: 0.5px; }
.page-index__guide-lead { font-size: 1.1rem; line-height: 1.8; color: #AFC4E8; margin-bottom: 32px; }
.page-index__guide-lead a { color: #4FA8FF; text-decoration: underline; }
.page-index__guide-section h2 { color: #F2C14E; font-size: 1.6rem; margin-top: 32px; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 2px solid #244D84; }
.page-index__guide-section h3 { color: #4FA8FF; font-size: 1.25rem; margin-top: 24px; margin-bottom: 12px; }
.page-index__guide-section p { line-height: 1.8; margin-bottom: 20px; color: #F3F8FF; }
.page-index__guide-section ul,
.page-index__guide-section ol { margin-left: 24px; margin-bottom: 20px; color: #F3F8FF; line-height: 1.8; }
.page-index__guide-section blockquote { border-left: 4px solid #F2C14E; padding: 12px 20px; margin: 24px 0; background: #10233F; color: #F3F8FF; border-radius: 0 8px 8px 0; font-style: italic; }
.page-index__guide-figure { margin: 24px auto; text-align: center; }
.page-index__guide-figure img { width: 100%; max-width: 800px; height: auto; aspect-ratio: 2/1; object-fit: cover; display: block; margin: 0 auto; border-radius: 8px; }
.page-index__guide-figure figcaption { font-size: 0.9rem; color: #AFC4E8; margin-top: 8px; text-align: center; }
.page-index__guide-button { display: inline-block; padding: 12px 28px; border-radius: 8px; background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%); color: #fff; font-weight: 700; text-decoration: none; transition: opacity 0.3s ease, transform 0.3s ease; font-size: 1rem; }
.page-index__guide-button:hover { opacity: 0.9; }
.page-index__guide-button--gold { background: linear-gradient(180deg, #F2C14E 0%, #E0A72F 100%); color: #08162B; }
.page-index__guide-section details { background-color: #10233F; border: 1px solid #244D84; border-radius: 8px; padding: 16px 20px; margin-bottom: 12px; }
.page-index__guide-section summary { cursor: pointer; color: #F3F8FF; font-weight: 600; font-size: 1.1rem; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.page-index__guide-section summary::-webkit-details-marker { display: none; }
.page-index__guide-section details[open] summary { color: #F2C14E; }
.page-index__guide-section details p { margin-top: 12px; padding-top: 12px; border-top: 1px solid #1B3357; }
.page-index__guide-section details a { color: #4FA8FF; text-decoration: underline; word-break: break-word; }

@media (max-width: 768px) {
  .page-index__hero-image { aspect-ratio: 2/1; }
  .page-index__logo-grid { grid-template-columns: repeat(2, 1fr); gap: 16px 12px; }
  .page-index__logo-item { max-width: 180px; padding: 8px; }
  .page-index__logo-item:nth-child(5),
  .page-index__logo-item:nth-child(6) { grid-column: auto; }
  .page-index__logo-cta { width: 100%; max-width: 100%; box-sizing: border-box; white-space: normal; word-break: break-word; font-size: 0.9rem; padding: 10px 14px; }
  .page-index__guide-inner { padding: 16px 12px 40px; }
  .page-index__guide-title { font-size: 1.2rem; }
  .page-index__guide-section h2 { font-size: 1.3rem; }
  .page-index__guide-section h3 { font-size: 1.1rem; }
  .page-index__guide-section p { font-size: 0.95rem; }
  .page-index img { max-width: 100% !important; height: auto !important; }
  .page-index__guide-button, .page-index__guide-button--gold { max-width: 100%; box-sizing: border-box; text-align: center; white-space: normal; padding: 12px 20px; width: auto; display: inline-block; }
}